2115642 has 8 divisors (see below), whose sum is σ = 4231296. Its totient is φ = 705212.

The previous prime is 2115629. The next prime is 2115653. The reversal of 2115642 is 2465112.

It is a sphenic number, since it is the product of 3 distinct primes.

2115642 is an admirable number.

It is an Ulam number.

It is a plaindrome in base 15.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176298 + ... + 176309.

It is an arithmetic number, because the mean of its divisors is an integer number (528912).

2^2115642 is an apocalyptic number.

2115642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2115642 is a wasteful number, since it uses less digits than its factorization.

2115642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352612.

The product of its digits is 480, while the sum is 21.

The square root of 2115642 is about 1454.5246646242. The cubic root of 2115642 is about 128.3750798388.

The spelling of 2115642 in words is "two million, one hundred fifteen thousand, six hundred forty-two".